Timbers forward Steve Zakuani had a tight hamstring and did not play Saturday, while forward Darlington Nagbe left the game after the first half with a muscle injury.

Nagbe came up limping after sending an awkward pass to Timbers forward Gaston Fernandez in the 43rd minute. Trainers evaluated Nagbe a few minutes later and the forward stayed in the match until halftime.

But Nagbe did not return to the field for the second half.

"We're getting some injuries, not sure why," Timbers coach Caleb Porter said. "Is that bad luck? What is it? Zakuani couldn't play because he was tight. (Darlington) has to come out of the game."

Porter could not say whether Nagbe’s injury was serious. But it would certainly be a blow for the Timbers if Nagbe couldn't play in next week's rivalry match against the Seattle Sounders.

"We'll evaluate that," Porter said. "He obviously had a cramp, tightness and had the come out of the match."